The SYM-21H-14+ is a 5-way, 12 GHz, SPST, single-pole, single-throw, ultra-miniature, band-pass filter from Mini-Circuits. It is designed to pass low and high frequency signals, while rejecting unwanted signals in-between. It features an insertion loss of only 0.8 dB, rejection of 22 dB, an operating temperature range of -40°C to +85°C, and a VSWR of 1.4 or less. Its small package size and high frequency performance make it ideal for use in a variety of applications, including cellular base stations, microwave links, and microwave radios.